Patrick o connor



(No Model.) 2 Sheets-Sheet 1. P OGONNOR MOLDING MACHINE.

No. 438,821. Patented Oct. 21, 1890.

(No Model.) 2 Sheets-Sheet 2. P OGONNOR MOLDING MACHINE.

No. 438,821. Patented Oct. 21, 1890;

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UNITED STATES PATENT OFFICE.

PATRICK OCONNOR, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO JAMES REYNOLDS,OF SAME PLACE.

MOLDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 438,821, dated October21, 1890. Application filed April 1'7, 1890. Serial No. 348,380. (Nomodel.)

To all whom it may concern.-

Be it known that I, PATRICK OOONNOR, a citizen of the United States,residing at New Haven, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inMolding- Machines, of which the following is a specification.

My invention relates to improvements in molding-machines; and the objectof my improvement is 'to enable a ring or rim and all inclosed parts tobe molded with a machine.

In the accompanying drawings,Figure 1 is a sectional view on line 00 0cof Fig. 3, showing my attachment and enough of a molding-machine to showits connections therewith. Fig. 2is a like view of the same with thepattern withdrawn from the sand. Fig. 3 is a plan view of the table andpattern with the flask and sand removed. .Fig. t is a sectional view ofthe table and pattern-carrier on the line y y of Fig. 1. Fig. 5 is asectional view similar to Fig. 1, illustrating a slight modification.Fig. 6 is a transverse section of a lock-case representing the work donewith my moldingmachine. Fig. 7 is a reverse plan View of the centraltable or bed with a horizontal section of the pattern-carrier, and Fig.8 is a vertical section thereof on line 2 z of 5.

The lock-case, Fig. 6, is provided with a flange 9 of considerable widthor depth, which flange completely encircles the space inclosed by thecase and forms the narrow side edges of the box or case. The solid backor broad side 10 is cast integral with this rim. The interior of thecase is provided with studs or projections 11, of various forms, whichare molded simultaneously with molding the rim. This illustrates thecharacter of the work intended to be done with my machine; but the formof the rim, Whether round or angular, and that of the inclosed parts, isimmaterial.

A designates a stationary bed or table of a molding-machine; B, a barsecured to the under side thereof, and C a central or inner table orpresser-plate supported on said bar.

D designates the movable slide or plate of an ordinary molding-machineand to which the pattern holder or holders are attached.

The rimpattern holder E is a rectangular or box-like structure of thesame general form as the rim 9, at the upper side of which thepattern-rim 9 is attached in any ordinary manner. The patterns andpattern-carriers 11 for the interior pieces are also attached to themovable slide D, so as to move therewith. The sides of the rim-patternholder E are slotted, as at 12, Figs. 1, 2, and 4, to per mit thesupporting-bar B to pass through them, while at the same time therim-pattern holder may move up and down by said bar. Thus I am enabledto have the entire bed or table, inner table or presser-plate, and allof their connecting-supports wholly above the movable slide D.

The machine as illustrated is designed for molding only such parts ofthe lock-case, Fig. 6, as project from the broad side or back 10, theback being separately molded and the two parts of the flask unitedbefore casting, in the ordinary manner.

When the slide D is elevated, so much of the pattern as is intended tobe molded projects above the top of the table or bed A, as shown inFig. 1. The flask F is placed thereon and filled with sand and packed inthe usual manner, after which the slide D is lowered, as illustrated inFig. 2, so as to wholly withdraw the pattern from the sand. The board Gmay then be placed on the flask and the flask removed ready to repeatthe operation. When the slide D is lowered, the bed or table Areceivesthe pressure of the sand and supports the same upon all parts outside ofthe rim-pattern 9 in the ordinary manner, while at the same time thecenter presserplate or table C presses upon and supports the sand thatis inclosed by said rim-pattern, While not only the rim-pattern but allthe interior pieces are being withdrawn from the mold.

Instead of supporting the center bed C by the bar B, it may be providedwith equivalent supports for attaching to the principal tableas, forinstance, four lugs 13, as shown in Figs. 5, 7, and 8and fastened byscrews to the under side of the bed or table A. In such case therim-pattern carrier E will be slotted for the passage of said lugs, asshown at 1.4, the operation being the same as thz t before described.

I claim as my invention- 5 In a molding-machine, the combination of theprincipal table or bed, a stationary inner bed supported thereon, theslide D, rim-pattern holder and pattern-carrier for the interior pieces,said pattern-holder and carrier both being secured to said slide and thein- 10 e; bed having perforations through which said carrier for theinferior pieces passes, substantially as described, and for the purposespecified.

A RICK OGONN R- Witnesses:

CHRISTOPHER FAGAN, JAMES J. KANE.

